TC651

The TC650/651 are integrated temperature sensors and brushless DC fan speed controllers. The TC650/651 measure their junction temperature and control the speed of the fan based on that temperature, making them especially suited for applications in modern electronic equipment. Temperature data is converted from the on-chip thermal sensing element and translated into a fractional fan speed from 40% to 100%. A temperature selection guide in the data sheet is used to choose the low and high temperature limits to control the fan. The TC650/651 also include a single trip point over temperature alert (Tover) that eliminates the need for additional temperature sensors. In addition, the TC651 features an auto fan shutdown function for additional power savings. The TC650/651 are easy to use, and require no software overhead, and are therefore the ideal choice for implementing thermal management in a variety of systems.

Features
  • Digital Temperature Sensing and Multi-Speed Fan Control
  • Built in Over Temperature Alert (Tover)
  • Temperature Proportional Fan Speed Control for Acoustic Noise Reduction and Longer Fan Life
  • Pulse Width Modulation Output Drive for Cost and Power Savings
  • Solid State Temperature Sensing
  • ±1o C (Typical) Accuracy from 25o C to +70o C
  • 2.8 - 5.5V Operating Range
  • TC651 includes Auto Fan Shutdown
  • Low Operating Power: 50µA (Typ)
Parameter
Parameter Name Value Value
Device Description Fan Manager Fan Manager
Typical Accuracy (°C) 1 1
Over Temp Alert yes yes
Max. Supply Current (µA) 90 90
Max. Accuracy @ 25°C (°C) 3 3
Integrated Temp Sensor Yes Yes
Auto Shutdown Yes Yes
High/Low PWM Freq Low Low
Temp Range (°C) -40 to +125 -40 to +125
Vcc Range (V) +2.8 to +5.5 +2.8 to +5.5
Documents
TC650/TC651 Data SheetData Sheets02/05/2013244KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Fan Control Function Pack Design GuideProduct Line Documents08/23/2006162KB
Fan Management Solutions Product OverviewProduct Line Documents08/23/200687KB
TC65X Fan Speed Controller FamilyProduct Line Documents10/22/200262KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's GuideUser Guides01/24/20061367KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
TC651ACVUA8MSOP-40C to +125CTUBE1.511.261.141.101.09
TC651ACVUATR8MSOP-40C to +125CT/R1.511.261.141.101.09
TC651ADVUA8MSOP-40C to +125CTUBE1.511.261.141.101.09
TC651ADVUATR8MSOP-40C to +125CT/R1.511.261.141.101.09
TC651AEVUA8MSOP-40C to +125CTUBE1.511.261.141.101.09
TC651AEVUATR8MSOP-40C to +125CT/R1.511.261.141.101.09
TC651AGVUA8MSOP-40C to +125CTUBE1.511.261.141.101.09
TC651AGVUATR8MSOP-40C to +125CT/R1.511.261.141.101.09
TC651BEVUA8MSOP-40C to +125CTUBE1.511.261.141.101.09
TC651BEVUATR8MSOP-40C to +125CT/R1.511.261.141.101.09
TC651CGVUA8MSOP-40C to +125CTUBE1.511.261.141.101.09
TC651CGVUATR8MSOP-40C to +125CT/R1.511.261.141.101.09
Similar Devices
ProductDescriptionTypical Accuracy (º)Temp RangePrice5K
EMC2101±0.5-40 - +125$0.79
EMC2300±0.250 - 70$1.24
EMC6D102±0.250 - 70$1.63
EMC6D103±0.250 - 70$1.80
EMC6D103S±0.250 - 70$1.80
EMC6W201±0.250 - 70$2.19
TC642Fan ManagerDepends on external thermistor-40 - +85$1.02
TC642BFan ManagerDepends on external thermistor-40 - +85$0.84
TC646Fan ManagerDepends on external thermistor-40 - +85$1.02
TC646BFan ManagerDepends on external thermistor-40 - +85$0.84
TC647Fan ManagerDepends on external thermistor-40 - +85$0.94
TC647BFan ManagerDepends on external thermistor-40 - +85$0.84
TC648Fan ManagerDepends on external thermistor-40 - +85$0.85
TC648BFan ManagerDepends on External Thermistor-40 - +85$0.79
TC649Fan ManagerDepends on external thermistor-40 - +85$0.94
TC649BFan ManagerDepends on external thermistor-40 - +85$0.84
TC650Fan Manager1-40 - +125$1.26
TC651Fan Manager1-40 - +125$1.08
TC652Fan Manager1-40 - +125$1.36
TC653Fan Manager1-40 - 125$1.36
TC654Dual SMBus Fan ManagerDepends on external thermistor-40 - +85$1.43
TC655Dual SMBus Fan ManagerDepends on external thermistor-40 - +85$1.53
TC664Single SMBus Fan ManagerDepends on external thermistor-40 - +85$1.27
TC665Single SMBus Fan ManagerDepends on external thermistor-40 - +85$1.31
TC670Predictive Fan Fault DetectorN/A-40 - +85$0.94
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
TC651ACVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TC651ACVUATR0.0256000.2156008MSOP3x3mmMatte Tine3
TC651AEVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TC651AEVUATR0.0256000.2156008MSOP3x3mmMatte Tine3
TC651AGVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TC651AGVUATR0.0256000.2156008MSOP3x3mmMatte Tine3
TC651BEVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TC651BEVUATR0.0256000.2156008MSOP3x3mmMatte Tine3
TC651CGVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TC651CGVUATR0.0256000.2156008MSOP3x3mmMatte Tine3
TC651ADVUATR0.0256000.2156008MSOP3x3mmMatte Tine3
TC651ADVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TC650/TC651 Data Sheet TC651
Analog & Interface Guide (Volume 2) MCP23S08
Quick Guide to Microchip Development Tools ENC28J60
Fan Control Function Pack Design Guide TC670
Fan Management Solutions Product Overview TC670
TC65X Fan Speed Controller Family TC654
Analog & Interface Product Selector Guide ENC624J600
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's Guide SOIC8EV
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